Industrials

2 big US coal companies combine Wyoming, Colorado operations

Two of the world's largest coal producers have announced they will combine mining operations in Wyoming and Colorado in an attempt to improve their competitiveness against growing competition from natural gas and renewable energy sources.

Leaked email raises new questions about PolyMet water permit

A leaked email shows that a senior official sought to keep the public from knowing federal Environmental Protection Agency staffers' concerns about the pollution risks of a planned PolyMet copper-nickel mine in northeastern Minnesota, critics of the project contend.

Business Highlights

___ Facebook plans its own currency for 2 billion-plus users SAN FRANCISCO (AP) — Facebook has unveiled an ambitious plan to create a new digital currency for global use similar to Bitcoin.